'use strict'

process.chdir(__dirname)

const titbit = require('titbit')
const fs = require('fs')
const pg = require('pg')
const dbconfig = require('./dbconfig.js')
const wxkey = require('./wxkey.js')

const tbloader = require('titbit-loader')
const token = require('titbit-token')

let tok = new token({
  //token有效期，单位是秒
  expires: 30,
  
  //必须是32位字母数字
  key: '1qaz2wsx3edc4rfv5tgb6yhn7ujmki89',

  //必须是16位字母数字
  iv: '9io08u7y6t5r4e3w'
})

//使用HTTP/1.1的客户端
const {httpcli} = require('gohttp')

//初始化数据库连接
let psql = new pg.Pool(dbconfig)

try {
  fs.accessSync('./images')
} catch (err) {
  fs.mkdirSync('./images')
}

let cert_path = '/usr/local/cert'

const app = new titbit({
  //开启调试模式，会输出错误信息。
  debug: true,
  globalLog: true,
  cert: `${cert_path}/www.vvh5.com.pem`,
  key: `${cert_path}/www.vvh5.com.key`
})

let tb = new tbloader();
tb.init(app);

//就是在app.service对象上添加了一个属性
app.addService('tok',tok);
app.addService('psql',psql);

app.addService('imagePath',`${__dirname}/images`)

//c 就是 context。
app.get('/', async c => {
  c.send('ok')
})

app.get('/upload', async c => {
  //c.helper是助手函数模块，其中有对stream.pipe的封装。
  //c.reply是响应对象，http/1.1中指向response，http/2中指向stream。
  await c.helper.pipe('./upload.html', c.reply)
})

app.get('/user/:name/:age/:mobile', async c => {
  console.log(c.param)
  c.send( c.param )
})

app.get('/mp-login/:code', async c => {
  
  let auth_url = `https://api.weixin.qq.com/sns/jscode2session`
        + `?appid=${wxkey.appid}`
        + `&secret=${wxkey.secret}`
        + `&js_code=${c.param.code}`
        + `&grant_type=authorization_code`

  let ret = await httpcli.get(auth_url)
                        .then(res => {
                          return res.json()
                        })

  c.send( tok.make(ret) )

})

//监听1234端口运行服务。
app.run(1999)
